Paper-bag machine.



No. .646,605. Patnted Apr. 3, 1900.

A? L, PABRISH- PAPER BAG MACHINE.

(Applicatian filed. Feb. 27, 1899. Renewed Jan. 2, 1900.)

(No lfladol.) 2 Sheets-Sheet I.

Patented Apr. 3, I900.

2 Sheetsr-Sfieel 2.

fay Vania flJa/L. I a/2"?" 5 m "H m MM A.G PA .8 B .5 AP ,A P 5 0 6 4 6 n N L (Application filed Feb. 27, 1899. Banewed Jan. 2, 1 900.)

(No Model.)

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. UNITED STATES PATENT Ounce.

ASA L. PARRISH, OF ELKHART, INDIANA, ASSIGNOR TO THE NATIONAL MANUFACTURING COMPANY, OF SAME PLACE.

PAPER-BAG MACHINE.

SPECIFICATION forming part of Letters Patent No. 646,605, dated April 3, 1900. Application filed February 27, 1899. Renewed January 2, 1900. Serial No. 166. (No model.)

To all whom it may concern:

Be it known that I, ASA L. PARRISH, a citizen of the United States, residing at Elkhart', in the county of Elkhart and State of Indiana, have invented certain new and useful Improvements in Paper-Bag Machines, of which the following isaspecification,referencebeing had therein to the accompanying drawings.

The invention consists in a cutting device for a machine for making paper bags or tubes; and it particularly consists in rollers which carry the cutting means and in'devices for causing the rollers to come into contact and to recede from each other intermittently, and, further, in the specific construction of the parts by which the rollers are thus caused to move and in the actuating devices for the rollers,all as more fully hereinafter described.

In the drawings I have not shown the tube-making machine to which my device is adapted to be attached, but have simply shown it as an attachment which may be employed in known bag-making machines.

Figure 1 is a sectional side elevation of my attachment. Fig. 2 is an elevation thereof, partly in section, as shown by line as w in Fig. 1. Fig. 3 is a vertical section through the actuating-rollers and their supporting rock arms, indicating in dotted linessome of the parts in front of the plane of section.

A and B are two parallel shafts supported in the frame of the machine and driven at uniform speed, being geared together by the gear-wheels 0. Upon these shafts are the pairs of rock-arms D and D, respectively, preferably secured to sleeves E, in which the shafts A'turn.

journaled, respectively, two supplemental feed-rollers I and 1, these rollers being journaled in such proximity to the pinions G that they may be'geared thereto by means of the gear-wheels J upon the shaft of each roller.

The roller 1 has a section of its bodycut out, as plainly shown in Fig. 3, and fastened to one face in such cut-away portion is a plate K, preferably having its outer edge curved, as shown, and which is what I call a striker.

The roller I is flattened at one point, and in this flattened surface is secured the knife L, which preferably is toothed and which c0- operates with the striker to cutoff the paper, as will be hereinafter explained.

One ofeach pair of rock-arms D and D is provided with actuating arms or levers a a,

and these arms are connected to the rockarms I) b on the rock-shaft M by means of suitable connecting-rods, such as c. The rock -shaft M is intermittently rocked by means of the arm 6, secured to the shaft and connected to the lever O by the link P. This lever has. a roller-wrist Q, engaging in the camway of a cam R, as plainly shown in Fig.1.

The machine is provided with suitable feed devices for the paper strip,which I have shown at S, and I have indicated feeding-rolls T in Fig. 3 as feeding the paper forward toward the rollers I and I.

This machine being connected to the ordinary machine for making paper bags or tubes, it is intended to cut the tube in lengths, as follows: The tube S is fed toward the rolls I I, which are separated, as shown in Fig. 1. The parts are so arranged and timed that after a proper length of paper tube has passed through between the rollers the cam R will rock the lever O, and through the connections described the rock-arms D D will be caused to approach each other until the rollers I I contact upon the paper strip. These rollers being driven through the gear connection described will rotate while in contact with the paper strip, forming a supplemental feed therefor which will keep said strip taut. At the proper time the striker K will force the paper across the knife L, as shown in Fig. 3, sever it, and then the rolls will again be separated to allow another portion of thetube to be fed between them.

I' am aware that rollers with striker and knife have heretofore been used forcuttingofi paper but I believe I am the first to usesuch rolls with means for causing them to separate while the paper is being fed therethrough and to simply move in contact only during the cutting operation. The benefit of this construction is that, regardless of the size of the bag, the small-diameter rolls which I am enabled to use will always have a greater surface speed than the speed at which the paper is fed, and, as is well understood, this is a desirable factor to make such cutting-rolls eificient. I believe also that the mechanism that I em ploy to effect this movement is extremely simple, will occupy very small space in the machine, and is especially eflicacious for the work which is it desired to accomplish.

What I claim as my invention is 1. The combination with feed devices for the paper, a pair of supplemental feed-rolls between which the paper is fed, transversecutting devices thereon, and means for causing the rolls to move into contact to effect the cutting and then to separate.

2. The combination with feed devices for the paper, a pair of supplemental feed-rolls between which the paper is fed, mechanism for intermittently reciprocating the rolls into and out of contact and for holding them in contact during the transverse cutting.

3. The combination in a machine for making paper bags or tubes of feed devices for the tube, a pair of driven rolls between which the tube is fed, cutting devices thereon, arms in which said rolls are journaled and means for intermittently rocking said arms for the purpose specified.

4. The combination in a machine for making paper bags or tubes of feed devices for the tube, a pair of rolls between which the paper is fed, arms in which said rolls are journaled, driving devices for the rolls carried by said arms, a driving connection from the driving means on the arms to stationarily-supported driving means, and means for rocking the arms intermittently for the purpose specilied.

5. The combination in a machine for makin g paper bags or tubes of two parallel shafts geared together, and simultaneously driven, a pair of rock-arms sleeved 011 each shaft, a roll journaled in each pair of rock-arms, complementary cutting devices on the rolls, a gear connection between each gear on the shafts and one of the rolls, such connecting-gearing being carried by the rock-arm, and means for intermittently rocking the rock-arms, for the purpose specified.

6. The combination in a machine for making paper bags or tubes of feed devices for the paper tube, a pair of driven rolls between which the tube is fed, cutting devices on the rolls, rock-arms in which the rolls are journaled, a rock-shaft, connections from and between the rock-shaft and each rock-arm, a cam, and connections from the cam to the rock-shaft, whereby the rolls are caused to contact and recede from each other intermittently.

7. The combination in a machine for making paper bags or tubes of feeding devices for the paper tube, a pair of driven rolls between which the tube is fed, cutting devices on the rolls, rock-arms in which the rolls are journaled, the actuating-arms (t a therefor, the rock-shaft M, the arms or lovers 1) b thereon and the connecting-rods 0 between the rock-arms a, b and a, b respectively, the lever 0, the roller-wrist Q thereon, the cam R, the rock-arm e on the shaft M and the connecting-rod P between the rock-arms e and the lever O, the parts arranged as and for the purpose described.

In testimony whereof I affix my signature in presence of two witnesses.

ASA L. PARRISII.

Witnesses:

WALTER BROWN, GEORGE W. FREDERICK. 

